ZCZC NFDSPENES ALL
SPENES
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SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/21/07 0125Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 0115Z   LIDDICK
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LOCATION...SOUTH TEXAS...
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ATTN WFOS...CRP...EWX...BRO...
ATTN RFCS...WGRFC...
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EVENT...VERY RAPIDLY COOLING TOPS PLUS HEAVY RAINS IN THE LAST 3 HOURS
OVER S CENTRAL TX
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SATELLITE ANALYSIS AND TRENDS...IR IMAGERY SHOWING VERY RAPID CLOUD
TOP COOLING OVER WEBB COUNTY WITH MULTIPLE OVERSHOOTING TOPS ON VIS.
CLOUD TOPS HAVE COOLED TO -75C WITH THE OVERSHOOTING TOPS AT -80C.
GIVEN PW VALUES AROUND 2.3" PER GOES SOUNDER AND 0Z OBS AND VERY RAPID
COOLING...ESTIMATING THAT SOME AREAS DIRECTLY UNDER THE CORES HAVE SEEN
3.0"-4.0" IN THE LAST 90 MIN IN AREAS DIRECTLY UNDER THE CONVECTIVE CORES.

MCMULLEN/ATASCOSA/FRIO COUNTIES..AUTOMATED ESTIMATES SHOWING A GENERAL
2.5"-3.5" OVER THE PAST 3 HOURS.  MANUAL ESTIMATES SUGGESTING SOME AREAS
HAVE SEEN 4.5"-4.75" IN THAT TIME PERIOD GIVEN OCCASIONAL OVERSHOOTING
TOPS THAT WERE SEEN ON VIS IMAGERY APPEARING OVER THE COUNTIES.
CLOUD TOPS HAVE BEEN GRADUALLY DYING SINCE THEN AND ONLY CONCERN IS WITH
CONVECTION TO THE SOUTH MOVING INTO THE AREA IF IT HOLD TOGETHER.

ZALAVA/DIMMIT/MAVERICK COUNTIES...IMAGERY ALSO SHOWED VERY COLD TOPS WITH
SOME OVERSHOOTING TOP SEEN ON VIS.  MANUAL/AUTOMATED ESTIMATES SHOWING
A GENERAL 3.0"-4.0" IN THAT TIME FRAME.  SAME AS ABOVE..CLOUD TOPS HAVE
BEEN WARMING AND CONVECTION HAS BEEN MOVING EWD.  ONLY CONCERN IS FOR
CONVECTION OVER WEBB COUNTY TO MOVE INTO THE AREA IF IT HOLD TOGETHER
LONG ENOUGH.

CHECK WEB ADDRESS IN 5-10 MIN FOR ASSOCIATED HYDROESTIMATOR GRAPHIC.
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SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
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SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
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LAT...LON 2852 9963 2800 9874 2724 9887 2733 9969 2845 10046
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